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Nataly_w [17]
3 years ago
7

During an experiment, Ellie records a measurement of 0.0034 m. How would

Physics
1 answer:
Goshia [24]3 years ago
8 0

Answer:

(A)   She needs to move the decimal point by 3 places

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Word Bank:<br> Electrical<br> Mechanical<br> Chemical<br> Light<br> Thermal<br> Sound
aev [14]

Answer:

Light to

Electrical to

mechanical and sound

4 0
3 years ago
Water flows through a 4.50-cm inside diameter pipe with a speed of 12.5 m/s. At a later position, the pipe has a 6.25-cm inside
jek_recluse [69]

Given,

The initial inside diameter of the pipe, d₁=4.50 cm=0.045 m

The initial speed of the water, v₁=12.5 m/s

The diameter of the pipe at a later position, d₂=6.25 cm=0.065 m

From the continuity equation,

\begin{gathered} A_1v_1=A_2v_2 \\ \pi(\frac{d_1}{2})^2v_1=\pi(\frac{d_2}{2})^2v_2 \\ \Rightarrow d^2_1v_1=d^2_2v_2 \end{gathered}

Where A₁ is the area of the cross-section at the initial position, A₂ is the area of the cross-section of the pipe at a later position, and v₂ is the flow rate of the water at the later position.

On substituting the known values,

\begin{gathered} 0.045^2\times12.5=0.065^2\times v_2 \\ \Rightarrow v_2=\frac{0.045^2\times12.5}{0.065^2} \\ =5.99\text{ m/s} \end{gathered}

Thus, the flow rate of the water at the later position is 5.99 m/s

4 0
1 year ago
What is meant by sundial???​
Fofino [41]

Answer:

Sundial is an instrument showing the time by the shadow of a pointer cast by the sun on to a plate marked with the hours of the day.

4 0
2 years ago
Read 2 more answers
What is the mass of a baseball clocked moving at a speed of 105 mph or 46.9 m/s and wavelength 9.74 × 10-35m?
Andrew [12]
For this problem to be solved, we make use of the de Broglie formula which is written below as follows:

λ = h/mv
where h is 6.626×10⁻³⁴ J·s

9.74 × 10⁻³⁵ m = 6.626×10⁻³⁴ J·s/ (m)(46.9 m/s)
Solving for m,
<em>m = 0.145kg</em>
6 0
3 years ago
Which part of the scientific process includes identifying problems? A.(Collecting data) B.(Doing experiments) C.(Making observat
Ksivusya [100]
Making observations.
5 0
3 years ago
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